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CUT5 3.5
Computers: Understanding Tech 5e 3.5
Term | Definition |
---|---|
antivirus software | A utility program that monitors a system and guards against damage from computer viruses and other malware. |
executable file | A file that runs a program. |
malware | Software that does damage to a computer, compromises security, or causes annoyance. |
firewall | A security system that acts as a boundary to protect a computer or network from unauthorized access. |
personal firewall | A software-based firewall designed to protect a PC from unauthorized users attempting to access other computers through an Internet connection. |
network firewall | A firewall that is a combination of hardware and software, and is designed for business network use. |
proxy server | A server that intercepts and processes network requests for a variety of purposes, including security, content filtering, or network performance optimization. |
diagnostic utility | A utility that analyzes a computer’s components and system software programs, and creates a report that identifies the system status and any problems found. |
uninstaller | A utility program for removing software and its associated entries in the system files. |
disk scanner | A utility that examines the hard disk and its contents to identify potential problems, such as physically bad spots and errors in the storage system. |
disk defragmenter | A utility that scans the hard disk and reorganizes files and unused space in order to allow the operating system to locate and access files and data more quickly. |
noncontiguous sectors | Sectors that are not adjacent to one another on a hard disk drive’s physical surface. |
file compression utility | A utility that compresses (or shrinks) the size of a file so it occupies less disk space. A file compression utility can also combine multiple files into a single compressed file for easier transfer. |
backup utility | A utility that allows the user to make backup copies of important files. |
spam | Unwanted commercial email, or junk mail. |
spam blocker | A utility program often used to filter incoming spam messages. |
spyware | A form of malware that secretly tracks the activities of an Internet user and relays the gathered information back to a third party. |
adware | A form of malware that displays unwanted advertising on the infected computer. |